-- Room backgrounds: PNG assets in /public/room with ids room-1 .. room-4.

-- Drop legacy check before rewriting values (old ids: room-day, room-dusk, etc.).
alter table public.avatar_state
  drop constraint if exists avatar_state_room_background_check;

update public.avatar_state
set room_background = case room_background
  when 'room-day' then 'room-1'
  when 'room-dusk' then 'room-2'
  when 'room-night' then 'room-3'
  when 'room-forest' then 'room-4'
  when 'room-space' then 'room-1'
  when 'room-neon' then 'room-1'
  else room_background
end
where room_background in (
  'room-day',
  'room-dusk',
  'room-night',
  'room-forest',
  'room-space',
  'room-neon'
);

update public.avatar_state
set room_background = 'room-1'
where room_background is null
  or room_background not in ('room-1', 'room-2', 'room-3', 'room-4');

alter table public.avatar_state
  alter column room_background set default 'room-1';

alter table public.avatar_state
  add constraint avatar_state_room_background_check
  check (
    room_background in (
      'room-1',
      'room-2',
      'room-3',
      'room-4'
    )
  );

-- New shop rows must exist before user_items FK references are updated.
insert into public.shop_items (id, name, type, price, image_path)
values
  ('room-3', 'Starlit Night', 'room', 40, '/room/room-3.png'),
  ('room-4', 'Mystic Forest', 'room', 50, '/room/room-4.png')
on conflict (id) do update
set
  name = excluded.name,
  type = excluded.type,
  price = excluded.price,
  image_path = excluded.image_path;

update public.user_items
set item_id = case item_id
  when 'room-night' then 'room-3'
  when 'room-forest' then 'room-4'
  else item_id
end
where item_id in ('room-night', 'room-forest');

delete from public.shop_items
where id in ('room-night', 'room-forest');